<template>
  <div class="xtx-cart-page">
    <div class="container">
      <XtxBread>
        <XtxBreadItem to="/">首页</XtxBreadItem>
        <XtxBreadItem>购物车</XtxBreadItem>
      </XtxBread>
      <!-- 购物车无商品时的展示 -->
      <CartNone v-if="$store.state.cart.list.length == 0"></CartNone>
      <!-- 购物车列表 -->
      <div class="cart">
        <table>
          <thead>
            <tr>
              <th width="120">
                <XtxCheckbox @change="checkAll" :modelValue="$store.getters['cart/isCheckAll']">全选</XtxCheckbox>
              </th>
              <th width="400">商品信息</th>
              <th width="220">单价</th>
              <th width="180">数量</th>
              <th width="180">小计</th>
              <th width="140">操作</th>
            </tr>
          </thead>
          <!-- 有效商品 -->
          <tbody>
            <tr v-for="goods in $store.getters['cart/validList']" :key="goods.skuId">
              <td>
                <XtxCheckbox @change="($event) => checkOne(goods.skuId, $event)" :modelValue="goods.selected" />
              </td>
              <td>
                <div class="goods">
                  <RouterLink :to="`/product/${goods.id}`"><img :src="goods.picture" alt=""></RouterLink>
                  <div>
                    <p class="name ellipsis">{{ goods.name }}</p>
                    <!-- 选择规格组件 -->
                    <CartSku @change="$event => updateCartSku(goods.skuId, $event)" :skuId="goods.skuId"
                      :attrsText="goods.attrsText"></CartSku>
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{ goods.nowPrice }}</p>
                <p v-if="goods.price - goods.nowPrice > 0">比加入时降价 <span class="red">&yen;{{ goods.price -
                    goods.nowPrice
                }}</span></p>
              </td>
              <td class="tc">
                <!-- 数量组件 -->
                <XtxNumbox @change="$event => updateCart(goods.skuId, $event)" :max="goods.stock"
                  :modelValue="goods.count" />
              </td>
              <td class="tc">
                <p class="f16 red">&yen;{{ Math.round(goods.nowPrice * 100) * goods.count / 100 }}</p>
              </td>
              <td class="tc">
                <p><a href="javascript:;">移入收藏夹</a></p>
                <p @click="deleteCart(goods.skuId)"><a class="green" href="javascript:;">删除</a></p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
          <!-- 无效商品 -->
          <tbody v-if="$store.getters['cart/invalidList'].length > 0">
            <tr>
              <td colspan="6">
                <h3 class="tit">失效商品</h3>
              </td>
            </tr>
            <tr v-for="goods in $store.getters['cart/invalidList']" :key="goods.id">
              <td>
                <XtxCheckbox style="color:#eee;" />
              </td>
              <td>
                <div class="goods">
                  <RouterLink to="/"><img :src="goods.picture" alt=""></RouterLink>
                  <div>
                    <p class="name ellipsis">{{ goods.name }}</p>
                    <p class="attr">{{ goods.attrsText }}</p>
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{ goods.nowPrice }}</p>
              </td>
              <td class="tc">{{ goods.count }}</td>
              <td class="tc">
                <p>&yen;{{ Math.round(goods.nowPrice * 100) * goods.count / 100 }}</p>
              </td>
              <td class="tc">
                <p @click="deleteCart(goods.skuId)"><a class="green" href="javascript:;">删除</a></p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
        </table>
      </div>
      <!-- 操作栏 -->
      <div class="action">
        <div class="batch">
          <XtxCheckbox @change="checkAll" :modelValue="$store.getters['cart/isCheckAll']">全选</XtxCheckbox>
          <a @click="batchDeleteCart()" href="javascript:;">删除已选择商品</a>
          <a href="javascript:;">移入收藏夹</a>
          <a @click="batchDeleteCart(true)" href="javascript:;">清空失效商品</a>
        </div>
        <div class="total">
          共 {{ $store.getters['cart/validTotal'] }} 件商品，已选择 {{ $store.getters['cart/selectedTotal'] }} 件，商品合计：
          <span class="red">¥{{ $store.getters['cart/selectedAmount'].toFixed(2) }}</span>
          <XtxButton @click="checkout" type="primary">下单结算</XtxButton>
        </div>
      </div>
      <!-- 猜你喜欢 -->
      <GoodRelevan />
    </div>
  </div>
</template>
<script>
import Confirm from '@/components/library/Confirm'
import GoodRelevan from '@/views/goods/components/goods-relevan'
import { useStore } from 'vuex'
import CartNone from './components/cart-none.vue'
import CartSku from './components/cart-sku.vue'
import Message from '@/components/library/Message'
import { useRouter } from 'vue-router'
export default {
  name: 'XtxCartPage',
  components: {
    GoodRelevan,
    CartNone,
    CartSku
  },
  setup() {

    const { dispatch, commit, getters } = useStore()
    //修改购物车的勾选状态
    const checkOne = (skuId, selected) => {
      dispatch('cart/updateCart', { skuId, selected })
    }

    //全选按钮的状态改变
    const checkAll = (selected) => {
      dispatch('cart/checkAllCart', selected)
    }

    //删除商品
    const deleteCart = (skuId) => {
      // commit('cart/deleteCart', skuId)
      Confirm({ text: '亲，您确定要删除该商品吗' }).then(() => {
        dispatch('cart/deleteCart', skuId)
      }).catch(e => {

      })
    }

    //批量删除
    const batchDeleteCart = (isClear) => {
      Confirm({ text: `亲，您确定要${isClear ? '清空所有失效的' : '删除已选中的'}${isClear ? '' : getters['cart/selectedTotal'] + '件'}商品吗` }).then(() => {
        dispatch('cart/batchDeleteCart', isClear)
      }, () => {

      })
    }

    //规格组件更新sku 
    const updateCartSku = (oldSkuId, newSkuId) => {
      dispatch('cart/updateCartSku', { oldSkuId, newSkuId })
    }

    //数量组件修改数量
    const updateCart = (skuId, count) => {
      dispatch('cart/updateCart', { skuId, count })
    }

    //点击结算按钮功能
    const store = useStore()
    const { push } = useRouter()
    const checkout = () => {
      //判断是否选择商品，且提示
      if (getters['cart/selectedList'].length == 0) {
        Message({ text: '请至少选择一件商品' })
        return
      }
      //弹出确认框，提示：下单结算需要登陆
      if (!store.state.user.profile.token) {
        Confirm({ text: '亲，您还未登陆,需要跳转至登陆页面吗' }).then(() => {
          push('/member/checkout')
        }).catch(() => { })
      } else {
        push('/member/checkout')
      }

      //使用导航守卫，遇见登陆的路由跳转，拦截到登陆页面
    }
    return {
      checkOne,
      checkAll,
      deleteCart,
      batchDeleteCart,
      updateCart,
      updateCartSku,
      checkout
    }
  }
}
</script>
<style scoped lang="less">
.tc {
  text-align: center;

  .xtx-numbox {
    margin: 0 auto;
    width: 120px;
  }
}

.red {
  color: @priceColor;
}

.green {
  color: @xtxColor
}

.f16 {
  font-size: 16px;
}

.goods {
  display: flex;
  align-items: center;

  img {
    width: 100px;
    height: 100px;
  }

  >div {
    width: 280px;
    font-size: 16px;
    padding-left: 10px;

    .attr {
      font-size: 14px;
      color: #999;
    }
  }
}

.action {
  display: flex;
  background: #fff;
  margin-top: 20px;
  height: 80px;
  align-items: center;
  font-size: 16px;
  justify-content: space-between;
  padding: 0 30px;

  .xtx-checkbox {
    color: #999;
  }

  .batch {
    a {
      margin-left: 20px;
    }
  }

  .red {
    font-size: 18px;
    margin-right: 20px;
    font-weight: bold;
  }
}

.tit {
  color: #666;
  font-size: 16px;
  font-weight: normal;
  line-height: 50px;
}

.xtx-cart-page {
  .cart {
    background: #fff;
    color: #666;

    table {
      border-spacing: 0;
      border-collapse: collapse;
      line-height: 24px;

      th,
      td {
        padding: 10px;
        border-bottom: 1px solid #f5f5f5;

        &:first-child {
          text-align: left;
          padding-left: 30px;
          color: #999;
        }
      }

      th {
        font-size: 16px;
        font-weight: normal;
        line-height: 50px;
      }
    }
  }
}
</style>